Witness: Events of the 20th Century: Killer Diseases (1999)

David Frost presents two programmes chronicling notable events of the 20th century. 'Killer Diseases' looks back at mass outbreaks of diseases such as cholera and tuberculosis, and demonstrates how their threat has been combatted. 'The Bug That Bites' looks at how both natural cures and combinations of drugs have been used to battle AIDS.